Kotlin: add extractor support for Kotlin 2.4.0

Add 2.4.0 compiler artifacts and API compatibility shims, including updated plugin registration and version-agnostic IR accessors.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: andersfugmann

MODULE.bazel

@@ -248,6 +248,7 @@ use_repo(
     "kotlin-compiler-2.2.20-Beta2",
     "kotlin-compiler-2.3.0",
     "kotlin-compiler-2.3.20",
+    "kotlin-compiler-2.4.0",
     "kotlin-compiler-embeddable-1.8.0",
     "kotlin-compiler-embeddable-1.9.0-Beta",
     "kotlin-compiler-embeddable-1.9.20-Beta",
@@ -259,6 +260,7 @@ use_repo(
     "kotlin-compiler-embeddable-2.2.20-Beta2",
     "kotlin-compiler-embeddable-2.3.0",
     "kotlin-compiler-embeddable-2.3.20",
+    "kotlin-compiler-embeddable-2.4.0",
     "kotlin-stdlib-1.8.0",
     "kotlin-stdlib-1.9.0-Beta",
     "kotlin-stdlib-1.9.20-Beta",
@@ -270,6 +272,7 @@ use_repo(
     "kotlin-stdlib-2.2.20-Beta2",
     "kotlin-stdlib-2.3.0",
     "kotlin-stdlib-2.3.20",
+    "kotlin-stdlib-2.4.0",
 )
 
 go_sdk = use_extension("@rules_go//go:extensions.bzl", "go_sdk")

docs/codeql/reusables/supported-versions-compilers.rst

@@ -21,7 +21,7 @@
    Java,"Java 7 to 26 [6]_","javac (OpenJDK and Oracle JDK),
 
    Eclipse compiler for Java (ECJ) [7]_",``.java``
-   Kotlin,"Kotlin 2.0.0 to 2.3.2\ *x*","kotlinc",``.kt``
+   Kotlin,"Kotlin 2.0.0 to 2.4.\ *x*","kotlinc",``.kt``
    JavaScript,ECMAScript 2022 or lower,Not applicable,"``.js``, ``.jsx``, ``.mjs``, ``.es``, ``.es6``, ``.htm``, ``.html``, ``.xhtm``, ``.xhtml``, ``.vue``, ``.hbs``, ``.ejs``, ``.njk``, ``.json``, ``.yaml``, ``.yml``, ``.raml``, ``.xml`` [8]_"
    Python [9]_,"2.7, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10, 3.11, 3.12, 3.13",Not applicable,``.py``
    Ruby [10]_,"up to 3.3",Not applicable,"``.rb``, ``.erb``, ``.gemspec``, ``Gemfile``"

java/kotlin-extractor/BUILD.bazel

@@ -64,8 +64,14 @@ _resources = [
         r[len("src/main/resources/"):],
     )
     for r in glob(["src/main/resources/**"])
+    if r != "src/main/resources/META-INF/services/org.jetbrains.kotlin.compiler.plugin.CompilerPluginRegistrar"
 ]
 
+_compiler_plugin_registrar_service = (
+    "src/main/resources/META-INF/services/org.jetbrains.kotlin.compiler.plugin.CompilerPluginRegistrar",
+    "META-INF/services/org.jetbrains.kotlin.compiler.plugin.CompilerPluginRegistrar",
+)
+
 kt_javac_options(
     name = "javac-options",
     release = "8",
@@ -91,19 +97,32 @@ kt_javac_options(
         # * `resource_strip_prefix` is unique per jar, so we must also put other resources under the same version prefix
         genrule(
             name = "resources-%s" % v,
-            srcs = [src for src, _ in _resources],
+            srcs = [src for src, _ in _resources] + (
+                [_compiler_plugin_registrar_service[0]] if not version_less(v, "2.4.0") else []
+            ),
             outs = [
                 "%s/com/github/codeql/extractor.name" % v,
             ] + [
                 "%s/%s" % (v, target)
                 for _, target in _resources
-            ],
+            ] + (
+                ["%s/%s" % (
+                    v,
+                    _compiler_plugin_registrar_service[1],
+                )] if not version_less(v, "2.4.0") else []
+            ),
             cmd = "\n".join([
                 "echo %s-%s > $(RULEDIR)/%s/com/github/codeql/extractor.name" % (_extractor_name_prefix, v, v),
             ] + [
                 "cp $(execpath %s) $(RULEDIR)/%s/%s" % (source, v, target)
                 for source, target in _resources
-            ]),
+            ] + (
+                ["cp $(execpath %s) $(RULEDIR)/%s/%s" % (
+                    _compiler_plugin_registrar_service[0],
+                    v,
+                    _compiler_plugin_registrar_service[1],
+                )] if not version_less(v, "2.4.0") else []
+            )),
         ),
         kt_jvm_library(
             name = "%s-%s" % (_extractor_name_prefix, v),

java/kotlin-extractor/deps/kotlin-compiler-2.4.0.jar

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:66e73eacd619c9beb7c22042117af36b443529c4d80237ee82cc4b2acb6f3d0b
+size 61902486

java/kotlin-extractor/deps/kotlin-compiler-embeddable-2.4.0.jar

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c2b25e8c1c93ec416ba4327f5e31eaec0f0c8847241b9353e294b8db9dce564f
+size 60351320

java/kotlin-extractor/deps/kotlin-stdlib-2.4.0.jar

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ccb14ff83fabcb11458b798dbc9824748ccdffeec79c9aba789e6ed1cda86b1c
+size 1841929

java/kotlin-extractor/dev/wrapper.py

@@ -27,7 +27,7 @@
 import io
 import os
 
-DEFAULT_VERSION = "2.3.20"
+DEFAULT_VERSION = "2.4.0"
 
 
 def options():

java/kotlin-extractor/src/main/kotlin/KotlinExtractorComponentRegistrar.kt

@@ -3,32 +3,21 @@
 
 package com.github.codeql
 
-import com.intellij.mock.MockProject
-import com.intellij.openapi.extensions.LoadingOrder
-import org.jetbrains.kotlin.backend.common.extensions.IrGenerationExtension
 import org.jetbrains.kotlin.config.CompilerConfiguration
 
 class KotlinExtractorComponentRegistrar : Kotlin2ComponentRegistrar() {
-    override fun registerProjectComponents(
-        project: MockProject,
-        configuration: CompilerConfiguration
-    ) {
+    override fun doRegisterExtensions(configuration: CompilerConfiguration) {
         val invocationTrapFile = configuration[KEY_INVOCATION_TRAP_FILE]
         if (invocationTrapFile == null) {
             throw Exception("Required argument for TRAP invocation file not given")
         }
-        // Register with LoadingOrder.LAST to ensure the extractor runs after other
-        // IR generation plugins (like kotlinx.serialization) have generated their code.
-        val extensionPoint = project.extensionArea.getExtensionPoint(IrGenerationExtension.extensionPointName)
-        extensionPoint.registerExtension(
+        registerExtractorExtension(
             KotlinExtractorExtension(
                 invocationTrapFile,
                 configuration[KEY_CHECK_TRAP_IDENTICAL] ?: false,
                 configuration[KEY_COMPILATION_STARTTIME],
                 configuration[KEY_EXIT_AFTER_EXTRACTION] ?: false
-            ),
-            LoadingOrder.LAST,
-            project
+            )
         )
     }
 }